Home / 11,775.06-16,242.37-6,991.76

Finding the Fourth Proportional to 11,775.06, 16,242.37 and 6,991.76

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Solution

The fourth proportional to 11,775.06, 16,242.37 and 6,991.76 is: 9,644.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,775.06 : 16,242.37 = 6,991.76 : x
  2. Step 2: Convert to fraction form
    11,775.06/16,242.37 = 6,991.76/x
  3. Step 3: Cross multiply
    11,775.06x = 16,242.37 × 6,991.76
  4. Step 4: Simplify right side
    11,775.06x = 113,562,752.87
  5. Step 5: Solve for x
    x = 113,562,752.87/11,775.06
  6. Step 6: Final answer
    x = 9,644.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.